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API 5L PSL1 PSL2 Gr.B X42 X52 X60 ahịrị ọkpọ ígwè na-enweghị nkebi
Ọkọlọtọ: API SPEC 5L, ISO3183, GB/T9711 Ọkwa B X42 X52 X56 X60 X65 Site na PSL1 PSL2;Ngwa: Ọ na-eji maka ibuga gas, mmiri, na mmanụ ala na mmanụ na eke gas ọrụ.
Ọkọlọtọ: API SPEC 5L, ISO3183, GB/T9711 Ọkwa B X42 X52 X56 X60 X65 Site na PSL1 PSL2;Ngwa: Ọ na-eji maka ibuga gas, mmiri, na mmanụ ala na mmanụ na eke gas ọrụ.